Flush tank inlet control valve



May 6 1958 L. slRofrEK I 2,833,300

FLUSH TANK INLET CONTROL VALVE Filed March 19, 1956 2 Sheets-Sheet 1 May 6, 1958 L. slRo'rEKv 2,833,300

FLUSH TANK LNLET CONTROL VALVE Filed March 19. 1956 2 Sheets-Shea?I 2 50a/(5 afro/gi j be noiseless.

FLUSH TANK INLET CONTROL VALVE j Louis Sirotek, Chicago, Ill. Application March 19, 1956, Serial No. 572,248 3 claims.' (c1. 137-244) y valve wherein water ow thereinto may be supplied from its bottom or top and which, in usage, will positively prevent undesirable back siphonage of water therethrough into the conventional water supply pipe to which the same is connected It is also an object of the. invention to provide a valve of the stated character which, during that period when it is open and admitting water to a tank equipped therewith, will be assured of remaining in a fully open position until such time as the level of the water owed'therethrough into said tank reaches a predetermined and proper point, whereupon the valve is actuated automatically to an instantly etected and completely closed position and similarly shuts off the flow of water therethrough into the tank. Thereby, a faster filling of the tank is accomplished; moreover, because the cut-off action of the valve is immediate, water whistling as it howsY through the lgradually closing present type of control valve is eliminated entirely.

- A further object of my invention is to `provide a control valve so constructed that, by simple and convenient ad justment, it can be regulated to admit and pass a preselected increased or decreased volumeof water.

y Yet another object of the invention is to provide a flush tank inlet control valve those operation during the discharge of water therefrom into the tank will be noiseless and without objectionable cascading and/r swirling effects, and whose operation in the cutting off of the tlow of water therethrough into said tank willvlikewise A still further object of the invention resides in providing to the valve a novel and operationally positivev means for maintaining the valve chamber pressure escape port constantly open and free of passageway clogging matters.

The foregoing, as well as other objects, advantages andV` meritorious teachings of my invention will be in part obvious and in part pointed out in the following detailed disclosure thereof, when takenin conjunction with the accompanying drawings, it being understood that the forms of the invention presented hereinv are precise and what are now considered to be the best modes of embodying its principles, but that other modifications and changes may be made in speciiie embodiments Without departing from its essential features.

'In the drawings: v

States Patent ice improved control valve construction with its operating parts shown in closed position. A

Figure 2 is a horizontal section taken on the line 2-2 of Figure 1, looking in'the direction in which the arrows point.

Figure 3 is a fragmentary vertical and medial section through the valve, wherein its operating parts are shown in open position whereby to admit of the ow of water thereto and therefrom. v Y

Figure 4 is a vertical and medial section through a modied form of my improved control valve. in which water inflow thereto is elected from its top rather than from its bottom, as is shown in Figure 1, and wherein the assembled valve construction is pendently supported instead of beingcolumn supported, as insaid Figure 1, and,

Figure 5 is a horizontal section taken on ythe line 5 5; of Figure 4, looking in the direction in which the arrows ing therethrough. Thus, an upper chamber 3 and a lower` chamber 4 are provided to and within the same.

A head 5, corresponding in shape and size tothe plane open upper end of the housing 1, is received thereon. Said head is formed with a concentrically located and screw-threaded opening from which co-axially disposed upper and lowerscrew-threaded nipples S? extend. Also, the head is formed with radially disposed and relatively spaced ribs 6.

Each of the ribs 6 has a duct 7 in and throughout their lengths opening onto the outer ends thereof `and into said concentrically located opening. Plugs or 4stopples 8 are threadedly engaged in the outer ends of the ducts and obviously, are removable therefrom, if desired or required. Also, each of these ducts are formedwith downwardly and outwardly discharging water outlet ways or ports 9; it being noted that said outlet ways open onto the normally lower side of the head 2 inwardly of the plugs 8 and that bosses 10 are formed on the head thereabout.

Other and relatively spaced outlet ways or ports 10 are formed in those portions of the head between the ribs 6, as is shown in Figure 2 off the drawings. These particulary ports, it will be noted, open onto the lower and upper sides of the head 5. i

The outer perimeter Aof the head 5 is formed or otherwise provided with a tixedand downwardly disposed lip 11 whose surface is plane and matches substantially, with that of the housing open upper end. interposed between the plane surfaces of the vhousing open upper end and f the lip 11 'of the head 5 is a diaphragm 12 made of rubber MAnr opening or way of shape and size similar to the .Figure 1 is a vertical andlmedial section through iny opening in the head 5 is formed in this diaphragm and registers with the latter opening. To improve the exibility of the diaphragm, l may and'prefer'ably do weaken the same by scoring as at 13, or in any other suitable manner.

Extending longitudinally or vertically through the h'ousy ing 1 and head 5 to points above and below the same is an externally screw-threaded pipe or tube 14. The diameter. of this pipe is such that it is rather snugly engaged through ,the casing open lower end, the opening in the wall 2, and snugly engagedthrough the 'opening'inthe tliaphragnl" Fatented May 6, 1958.

It isy of shape and' 12. It'supper end is threadedly engaged in and through the opening in the head and its nipple 5a.

Relatively vertically spaced series of ports 15 are formed in and about the tube 14 and communicate with the housing chamber 4, while'y a perforate disk or strainer 15' is tixedly received within said tube between the spaced series of ports `15 (see Figure 1). A screen strainer 16 is supported from the lower side of the wall 2 and envelops that portion `of the pipe having the uppermost seriesof ports 15 therein.

To connect the pipe 14 to the housing 1, an internally screw-threaded lock sleeve 17 is engaged over that portion of said pipe within the, housing chamber 3 and is turned into binding bearing engagement with an adjacent portionof the `housing wall 2, having a sealing gasket 18 interposed therebetween for an obvious purpose.

The lower and extended end portion of the pipe 14 threadedly receives a tlanged coupling sleeve 19, it`s ilanged end being in fluid tight contact with the plane lower open end of the housing and sealed by a gasket'20, while its lower portion is turned onto the screw-threaded adjacent end portion of a conventionalY water supply or stand pipe 21.

As above stated, the pipe 14 extends through Ythe head 5. `Its upper end portion is internally screw-threaded. A valve V22 is rotatably and threadedly engaged in the internally threaded upper end portion of the pipe 14 and has crossed and 'diametrically disposed ports 23 formed in and over its inner end` so positioned that they may be selectively aligned, partially aligned or disaligned with the ways 24 in the pipe 14. `These ways 24 register with the open ends of the ducts 7` in the ribs, as shown in Figure l of the drawings. peripherally knurled and has index markings 24', cor responding tothe arrangement or dispositioning of the ports 23, inscribed in orotherwise provided to its exposed f side, for an obvious purpose.

A sealing gasket 25 is interposed between `the valve head 22 and the adjacent end of the pipe 14.

To effect dispersed discharge tlow of water from the housing 1` via the head 5 a cap 26 of shape and size such that` it will cappingly and `snugly engage over the head and the diaphragm, is provided (see Figure 1). An

opening is `formed in and concentrically of the cap per-` mitting its engagement over the upper head nipple 5a and bearing engagement on the head. Perforations 26 are formed .inV the top side of the cap `and overlie the head 5, while an opening is formed in a portion of its peripheral flange to permit the snug engagement of a retilltube 27, hereinafter more fully' described, therein.

A downwardly flanged water flow deilecting cap 28 having a concentric and screw-threaded way therethrough is turned into engagement. with the upper threaded nipple 5a and cappingly overliesthe. perforate top and portions of the dispersing cap 26 in spaced relationthereto. Thus, an outwardly and downwardly disposed water channel or discharge way is `effected between the two caps 26 and 28 openingsonto the upper portions `of the walls of the housing 1. Obviously, by turningv the deliecting cap clockwise or counter-c1ockwise,rthe depth of the abovenoted water channel may be selectively `varied if desired i or required.

The refill tube 27, as will be. understood,` serves to provide water rell to a toilet bowl communicating there-` with whereby to provide the, usual sewergas seal' therein. That the tube may have water fed thereto,` a way 27' is formed in and througha portion of the head 5 and communicates with`its adjacent openend.

Positioned on one sidev of the housing 1 and opening into its chamber` 3 is a valve cylinderV 29. A seat is formediin the same at its point of communication with said chamber 3, while af duct 30 is formed therein inwardly of and adjacent. said seat and` at an angle to its longitudinal axis, communicating with a discharge port 30' opening .outwardly onto cylinder.

The head 22 is preferably,

CFI

A valve 31, having a packing equipped stem 32 extending into and through the cylinder, is seatable on the valve cylinder seat. The outer and free end of the stem is pivotally connected at 33, to an intermediate portion of a lever 34 mounted on a bracket arm 35 carried by the cylinder 29. The upper side of the bracket arm carries a fixed loop 36 receiving and firmly supporting the retill tube 27 in relation to the housing 1.

The lower and free end of the lever 34 has the adjacent end of a conventional form of tloat carrying arni 37 threadedly engaged therethrough, as at 38.

To impart movement retarding drag to the arm 37 whereby movement of the valve 31 to its closed position on the cylinder seat will be abruptly and wholly effected only at a predeterminad point of upward travel of said arm, a spring arm 39, having a curved intermediate portion, is connected at one end, at 40, to the lever free end. lts remaining end is disposed beneath and in proximity to the inner end of the cylinder 29 and tixedly carries a bearing pin 41 arranged adjacent and moveable onto a earn or boss 42 on said cylinder. In the open position of the valve 31, the pin 41 is disposed at the base of the cam, as, shown in Figure 3. However, as the water level in` anequipped tank (not shown) rises, upward rise and travel of the oat carrying arm 37 is resisted to a predetermined pressure point. the pin 41 on the spring arm 39 will abruptly ride onto the cam 42 `(see Figure l). In so doing, the valve 31 will immediately and abruptly move into full seating and closecl position with relation to theopen inner end the cylinder 29 V(see Figure l) discontinuing the outflow ofwater from the housingchamber 3 through the duct` matter; whichmight interrupt the chamber intercommuni-` cation, a passageway cleaning pin 44 is loosely and movably received therein, being headed at 44 to ensure its retention., y

In operation of the hereinbefore described form of my invention and assuming that a ilush tank equipped therewithhasfbeen emptied of water by a ilushing operation and is needy of refilling, the iloat carrying arm 37 will have moveddownwardly to the. position shown in Figure` 3 of the accompanying drawings. Thus, the lever 34 will have'. been swung inwardly toward the valve housing 1, ymovingithe, stemmed valve 31 from its seat in the valve cylinde1229."` .When this valve is opened, water `within the housingfchamber 3 will be discharged therefrom via the duct 30 and port130 in said cylinder. With the outflow of Waterlfrom thehousing chamber 3, as above, upward thrust and/or water pressure on the diaphragm 12 will be discontinued. Iny consequence, said diaphragm will be free to. hex, and, move downwardly` away from the ports 9 communicating with the. ducts 7 ,in the ribs 6. Thereupon,.water in the. pipe l14 will `tlow therefrom. A portion of such flow will be from the ports 15 into the lower chamber 4of the housing 1. from thek upper end of said pipe via the valved ways 24 therein into, and through the ducts 7 of the head ribs 6. This water how willl continue through the aforesaid ports 9 into downwardly thrusting engagement with the diaphragm 12. moving it downwardly to the open position illustrated inFigureB. Continuing its ow, the water will pass` upwardly through the ports 10 in the head 5 and outwardly through` the perforations 26 in the cap 26.

yFrom here, the water will discharge outwardly and downwardly by the dellecting cap 28 over the surfaces of the When such point is reached,`

Other flow will be eiected will be noted that because of the downward owing of the water over the housing walls, its cascading, splash and 'swirling will be eliminated'as will that noise incident to such conditions. Thus, the equipped ush tank will be refilled to the desired level without that objectionable noise common to the refilling of heretofore used types of ush tanks and valves.

Concurrently with the outflowing of water from the upper end of the control valve, as just described, the water discharged into the housing chamber 4 will rise therein and overflow through the by-pass or bleeding sleeved port 43 into the chamber 3from where it will pass by the now open valve 31 into and from the cylinder 29 through the duct 30 and port 30. Hence, the ow of water into the flush tank for effecting its refilling will be augmented.

As the level of water discharged from the controlvalve into the ush tank rises, so too will the oat (not shown) carried by the pivotally mounted arm 37. VDue to the provision of the spring 39 and bearing pin 41` to the said arm, andV its cooperation with the cam 42, the rate of speedof the rise of the arm will be retarded until a substantially predetermined, pressure thereto or thereon has been reached. At this time, the pin 41rides abruptly onto the cam 42 to the position shown in Figure 1 of the drawings, whereupon Vthe lioat carrying arm will rise sharply and in so doing, will move the valve 31 of the cylinder 29 abruptly and sharply to its fully closed position (see Figure 1).

The outflow of water yfrom Vthe chamber 3 being thus discontinued, its level will rise therein and at a substantially predetermined point of rise, will impart pressure and upward thrust to the underside of the diaphragm 12. This continuing pressure'and upward thrust will ilex'said dia phragm upwardly, causing it to engage over and close the ports 9 communicating with Vthe ducts 7 of the head ribs 6. Thereby, the ow and the discharge of water from the control valve into the aforesaid flush tank will be discontinued and said tank will have been refilled with water to the required level.

Concurrently with the lling of the flush tank, as above noted, a limited flow of water from the ducts 7 of the head 5 will be eiected through'the way 27' in said head and ilowed into and through the refill tube 27 discharging, at its outer end into a toilet bowl, thereby eiecting the usual water seal in said bowl to preclude passage of gases thereby. f course, as and when thedia# phragm 12 closes the ports 9 in the above described manner, the ow of water to the refill tube 27 will be discontinued.

The ow of water through the ducts 7 of the head ribs 6 om the pipe 14 can be selectively regulated by turning adjustment of the valve 22 which, in turn, will vary the extent of registration of its ports 23 with the ways 24 in the Pipe- Y ,It should also be noted that the pin 44 which is movably or reciprocally received by and in the sleeved port 43 will function to maintain a clear and unclogged passage therethrough, in that it will be pushed or thrust upwardly by the constant water pressure in the chamber 4, when pressure in the chamber 3 is released. Thus, said pin will rise to the underside of the diaphragm 12` and when this diaphragm is` flexed downwardly, .its underside will contact and thrust the pin 44 downwardly through the sleeved port 43. Also, when the pressure is equalized in the chambers 4 and 3, as when the control valve is in its closed position, the pin 44 will move or slide downwardly through the sleeved port by gravity and its own weight. Consequently, intercommunication between the housing chambers 3 and 4 is constantly and eftectually maintained.

Water 'entering the flush tank equipped with my improved control valve discharges over the top of said valve and downwardly over the valve body. Because the improved valve is supported by the water supply stand pipe 21 above the normal or maximum water level in said tank, itwill Vbe understood and appreciated that this arrangement and constructionwill lfunction to positively -prevent undesirable back siphonage of water therethrough into said stand pipe 21 and into the water supply pipe below the tank. Therefore, it follows that the hazard of water pollution will be eliminated, this, because as and when a water column within the stand pipe 21 lowers or recedes and creates a suction within and through the pipe or tube 14 and through the improved control valve, said valve be-V ing supported in air, to wit, above and beyond the ush tank contained water,'will` not permit spillage or return of tlush tank water therethrough and hence into the stand pipe 21. l y

The assembly of my improved control valve is of material importance and value. Its components may be l5 quickly and conveniently assembled and securely interconnected by engagement of the pipe y14 therethrough in the manner hereinbefore described. vAnd insuch assembly, the diaphragm 12, head 5, dispersion cap 26 and deecting cap 28 will v4bev effectually held or retained in their respective relationships. By the same token, the

construction may 'be quicklyland conveniently disassembled to provide access for parts adjustment, inspection,

repair or replacement, as required.

In the Figures 4 and 5 `of the accompanying drawings,

I have shown a slightly modified form of my improved valve. -In its modified form, the control valve embodies l) a `different type of support, (2) a different arrangementV of the sleeved port and the cleaning pin, (3) a different arrangement of Ichambers within the valve housing,`

30 and (4) a different coursing or inflowing of water thereinto.

what simplified construction is provided andalso, due

to the `elimination of the stand pipe 21 of the form of the invention shown in VFigures l, 2 Vand 3, any and all possible back siphonage into ythe water supply pipe and its resultant pollution will be eliminated. t

In said modied form yof the invention, Va substantially frusto conical1housing 1 is provided, the same being divided into chambers 3 and 4 by a partition wall 2.

450 The opposite :ends of the housing are open and plane.

The partition wall 2' is provided with a concentrically` located opening.

A diaphragm- 12 made` of rubber or other suitablel ilexible composition is received on the upper open and 4:5r plane end of the housing 1. A head 5"formed or other-1 wise provided with a pluralityof radially disposed ribsr engaged over the head and the diaphragm.

To deect the outward flow of water through the perforate capk 26a and direct the same downwardly and over the outer surfaces of the control valve housing .1 'a

downwardly flanged water iiow deflecting cap 28' having' a concentric and yscrew-threaded way therethrough, is turned intok engagement with a water inlet tting 4S, hereinafterlmoreffully described. By turning the decting cap clockwiseor counter-clockwise, the depth of thefchannel or way between it and the perforate cap 26H' V may be selectively varied.

Fixedly mounted or positioned on one side of the housing 1 and opening into its chamber 3' is a valve cylinder '29 having a seat formed in or von that portion of the same communicating with said chamber. Also, a duct 30a is formed in a portion of the cylinder wall inwardly of and adjacent said seat, being disposed at an angle .to

` `its longitudinal axis and communicating with a discharge y By this Vmodified form of my invention, la some-` "Aperforate cap '268' having a concentrically located and larger opening therethrough is cappingly and snugly.i

7 port 30"' in,` the cylinder wall and. openingl outwardly thereontojg p i w A valve 31" carrying a lsuitably packed ,stem A32' is received by the cylinder 29 and is seatable on the above described vcylinder valve seat, The louter and free end of the stem 32 is pivotally connected',` at 33" to an intermediate portion of a lever 34' mounted on a bracket arm 35 carried by the cylinder 29. A loop` 36 is carried ontheupper` end of thebracketarmV for apurposel which will be presently described.

"The lower andl free' end of the lever 34 is connected to a conventional form of oat carrying arm 37', as at 38.

To retard upward pivotal movement of the iloat` carry-p ing arm, 37"` as and' when a fiushtankfequipped with my improvedlvalve is being filled with Water, a construction embracing v`a spring arm 39.',- a bearing pin 41' 'and a cam 42on an adjacentportion' of the underside of` the cylinderfi29"'is provided, the same corresponding to a similarfconstruction,more specifically described `in the form of my invention shown inFigures 1,V 2 and 3. l

A` refill itube 27, is extended through the loop 36 on` the lever 34' into communication with the head 5, viaJ a way 27b in the latter.

A water `supplying and assembly interconnecting pipe 14', externally screw-threaded throughout its length, is extended `longitudinally and/or vertically through the housing 1, diaphragmlZ", headS, cap 26 and defiectingl cap 28 to a pointabove the latter. threadedly engaged with the lower end ofl the pipe and seats' on and closes the open plane ,lower end of the housing 1'. v ,Y

The upper portion of theV pipe 14' has a` plurality of relatively spaced and radially disposed ports 47 formed therein which, with proper positioning of the pipe.` willV align with the open inner ends ofthe djucts.74 in the head ribs 6', itfbeing notedthat saidVpipe `14' `is threadedly engaged through the concentric opening in the head The upper end of the pipe 14 is provided with V'a`second seriesV ofl relatively spacedand radially disposed ports 48. These ports have communication with Vthe water inlet fitting 45. To control and/or regulate the volume or extent of fiow of water into the pipe 1'4 from the fitting 45, a ported cylindrical rotatable valve 49" is threadedly engaged with thejextended upper` end of said pipe`14'. vThe portstherein, Awith rotation of the valve, mayl be selectively aligned, partially aligned or disaligned withthe pipe ports 48. i Preferably,tthe cylindrical valve 49 isv provided with a head 49'.- having its periphery knurled` and its upper and outer side inscribed with suitable index markings whereby to facilitate a desired adjustment of `the valve with relation to` the pipe ports 48. Also, agasket 50, or its equivalent, is interposed between the head 49 and adjacent portions of the fitting 45 for an obvious purpose. g

The water inlet fitting 45 consists ofa hollow annular heachopen4 at its top, andicornmunicating witha nipplelike 'extension 51 having, an internally. screw-threaded` socket fixture 52 thereon. The fixture, obviously, permits connectionto -a usual watersupplypipe (not shown) in order that` water may beprovided to and flowed into the control valve; also, as a means for supportingly connectingsaid controlvalve to the stand pipe Awithin an equipped flush tankwelll above its maximum water level..

In order that `communication will be establishedbetween the housing chamberand thepipe 14', a partition or wall` 53 is fixedlyA mounted within said pipe, separating its upper portion from its lower portion. Ahorizontal` way 54 isA formed in the partition andcommunicates with a port 55 in an adjacent portion of the pipe 14'.

To maintain unobstructed communication between the pipe 14` and the housing chamber 3*', a passageway cleaning pin 44' is loosely and slideably. received in the ways 54-55, having its outer end headed, as at 56 and.

positioned adjacent and normally in contact with the valve 31'.` Thus, as the valve 31 is moved away from about the pipe 14 and on adjacent portions of the horizontal wall 2'; a lock nut 58 being threadedly engaged about andv adjacent an intermediate portion of the pipe and bearing on the gasket, as clearly shown in Figure 4 of. thev drawings. An opening 58 is formed in an appropriate portion of this lock nut in registering relation to the port S5 for an obvious purpose.

From the foregoing, it will be understood that the pipe 14' when positionedl and engaged with the control valve construction in-the aforesaid` manner,` will serve to securely interconnect its component parts, retaining them in assembled and operative relationships. Moreover, should it` be required, access may be conveniently and quickly had to saidcomponent parts, by removing the pipe from its interconnected relationship thereto.'

In operation of the modified form of my invention as disclosed in the Figures 4 and 5, flush tank filling water enters the control valve by way of the water inlet fitting 45, liowing through the valve adjusted or regulated ports 48 intoand downwardly of the pipe 14'. A portion of this water flows through the ways 54-55 into the housing chamber 3. The remainder of the flow is effected from the pipe 14 through the ducts 7'Yof the head ribs 6.` Thus, with emptying of water from the equipped flush tank, as in a flushing operation, the float carrying arm 37' will have been moved downwardly to its lowest point of pivotal travel. In so doing, the valve 31 will be moved away from its seat on the cylinder 29. Consequently, water within the chamber 3' will be outletted therefrom through the duct 30a and the way 30b in said cylinder 29', removing pressure from the flexible diaphragm 12. Concurrently, water flowing from the pipe 14' through the ducts 7 of the head ribs 6 will liex the diaphragm downwardly away from the ports 9. Thereby, water will .be flowed throughsaid ports 9 and thence upwardly through ports formed in the head 5', corresponding to those indicated by the numeral 10 in the Figures l3 of the accompanying drawings. Water flowing through these last mentioned ports is outletted through the perforate dispersing cap 26a and is discharged over the deliecting cap Y28 downwardly and along the outer surface of the housing 1 into the equipped ilush tank.

As` and when the required amount of waterhas been discharged into the equipped ush tank and the required level has been attained therein, the float carrying arm 37 will have been raised to its uppermost pivotal position. In so doing the lever 34 willhave swung outwardly from the housing 1 and will have moved the valve 31' into its seated and closed position on the valve seat of the cylinder 29. Thereupon, a` continuing ow of water through and from the pipe 14' into the housing chamber 3' will ll Asaid chamber and will exert an upward pressure or thrust on the gasket 12',A hence, move the same` into the valve construction which may tend to or clog 9 the same and reduce its operating efficiencies will be positively prevented.

I claim:

l. A water inlet control valve, comprising a housing partitioned into lower and upper chambers, said chambers intercommunicating by way of a port in the partition, a cleaning pin received by and movable in said port, a discharge head on the housing above the upper chamber having ducts in the same opening only onto its lower side and communicating with an opening in an intermediate portion thereof and having ways therein opening onto its lower and upper sides, a diaphragm between the head and the housing upper chamber engageable, at times, over and closing the head lower side opening ducts, and a pipe engaged through and connected to said housing, diaphragm and head retaining the same in assembled relation and communicating with the housing lower chamber and the ducts and ways in the head.

2. A water inlet control valve, comprising a housing partitioned into lower and upper chambers, a water bypassing sleeve in the upper chamber supported by the partition communicating with the lower and upper chambers, a water inflow operated cleaning pin movably received within and through said sleeve, a discharge head on the housing above the upper chamber communicating therewith, water pressure actuated means between the head and the upper chamber whereby to control communication between said head and upper chamber, water outlet control means communicating with the upper chamber, and a water inflow pipe extended through the housing, discharge head water pressure actuated means and connected to said housing and head and communicating with the discharge head and lower chamber.

3. A water inlet control valve, comprising a housing partitioned into lower and upper chambers, a water bypassing .sleeve in the upper chamber supported by the partition communicating with the lower and upper chambers, a water inow operated cleaning pin movably received within and through said sleeve, a discharge head on the housing above the upper chamber communicating therewith, water pressure actuated means between the head and the upper chamber whereby to control communication between said head and upper chamber, water outlet control means communicating with the upper chamber, a water inilow pipe extended through the housing, discharge head and water pressure actuated means connected to the housing and the discharge head, said intlow pipe having relatively longitudinally spaced ports therein adjacent and communicating with the housing lower chamber, and screening means in said lower chamber engaged about and over the uppermost of the ports in said inflow pipe.

References Cited in the le of this patent UNITED STATES PATENTS 2,013,188 Reinhardt Sept. 3, 1935 2,318,236 Layton May 4, 1943 2,730,120 Sirotek Jan. 10, 1956 

